Bench blasting is the most usual type of blasting work.

梯段爆破是最常用的爆破工程之一。

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Let our bench-type body was to lie on all fours on the mat.

下面让我们的身体呈四脚板凳式趴在垫子上。

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Let our bench-type body was to lie on all fours on the mat.

下面让我们的身体呈四脚板凳式趴在垫子上。

youdao